Four years ago, anti-abortion Sen. Robert Casey addressed the Democratic National Convention.

“Barack Obama and I have an honest disagreement on the issue of abortion,” he said. “But the fact that I am speaking here tonight is testament to Barack’s ability to show respect to the views of people who may disagree with him… he’ll pursue the common good by seeking common ground rather than trying to divide us.”

The next day, speaking to fellow anti-abortion Democrats, we all admitted we had been moved to tears by Casey’s speech.

As candidate and as president, Obama promised he would try and heal the culture wars.